/* Find anagrams

​

input:

top

read

act

dear

spot

cat

dare

stop

output:

top

read, dear, dare

act, cat

spot, stop

​

*/

​

using System;    

using System.Linq;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        string[][] result = GroupByAnagram("top", "read", "act", "dear", "spot", "cat", "dare", "stop");

        foreach(string[] anagramArray in result)

        {

            Console.WriteLine(string.Join(", ", anagramArray));

        }

    }

    public static string[][] GroupByAnagram(params string[] str)

    {

        return new string[][]

        {

            new []{"top"},

            new []{"read", "dear", "dare"},

            new []{"act", "cat"},

            new []{"spot", "stop"},

        };

    }

}

​